Stave-planing machine



Jan. 9, 1923.

H. 0. OLSEN ET AL. STAVE PLANING MACHINE, FILED SEPT. 11. 1919.

3 SHEETSSHEET I Jan. 9, 1923. 1,441,369

H 0. OLSEN ET AL.

STAvE PLANING MACHINE. FILED SEPT. 1 I I919.

3 SHEETS-SHEET 2 3 SHEETS'SHEET 3 H. 0. OLSEN ET AL. STAVE PLANING MACHINE. FILED SEPT 11 1919.

Jan. 9, 1923.

A w J l llllll ll Patented Jan. 9, 19239.,

HENRIK OLAI OLSEN AND 'OSKAB NIELSEN, OF TRONDHUEM, NORWAY. I

STAVE-PLA'NING MACHINE."

Application filedsptember 11, 1919; serial No. 323,062.

the accompanying drawings, and to letters or figures of reference; marked thereon.

Wh1ch forma part of this specificatio -i. I

This invention relates'to. machines tor lformin g or planing cask staves of the kind in whichthe cutters for shaping the edges of "the staves have inclined cutting faces and means are provided tomove the cutters vertically according toitheir position in .re-.

lation to the stave. The distance between the cutters will thus always correspondto the correct shape ofthe stave and as the cutterbearingsare turnable on a common the angular shape of the stave will alwcys be correct independently of the various breadths of the stave materials. I When-a.

30. comparatively broad stave is put into the machine the cutter bearings will be pushed outward so thatthe edge of the cutter steel will have asomewhat more angular posi tion with the effect that the difierence in breadth at the ends of the stave and the middlepartther'eo'f is proportionally greater compared to that of a narrower stave! The principal improvementjin this machine is that after being automatically moved outward to correspond with the breadth of a stave, the cutters are moved vertically by the passage of the stave, there'- 'by giving it the correct bilge and angular until a new stave is put into the machine. 35y this machine it is thusunneeessary to sort outstaves of various breadths. Referring now to the accompanying drawings: 1

Figl is'a side elevation; [1312. 2 "a plan View; Figs. 3., 4 ,and6 detail views;

scale of the ratchet wheel and associated pivot (corresponding to the axis of'the' cask) shape. When the operationis comp'leted the 45 cutters slip back'to their primal position Fig. 5 isa view on a larger scale than Figs. 1 and 2 of the cutters which operate on the side faces and a portion of the regulating mechanism.

Fig. 7 is a detailed View on an enlarged mechanism.

Referrins now to the drawings v2 is the bed plate of the "machine which is provided With friction reducing and work supporting rollers 3. The work 1 to be converted into a stave is pushed along the bed plate 6 ,2 over the rollers 3 and under a roller 4.

The roller 4 is mounted'on a horizontally arranged shatt' 5 supported in bearings 6, 7. The bearings 6, 7 are such that the roller 4: is "permitted to accommodate itself towork of varying thicknesses. '8 is a driving pulley mounted on the shaft 5 on which is also mounteda second ,and smaller pulley 9,

which through any suitable belting drives a pulley 1O on a shaft 11 also carried in bearings on the ..bed plate 2. The shaft 11 carries a roller 12 andthe mounting of the shaft l-l is such "that the :roller 12 is able to accommodate itself to work otvarying' thicknesses. The work passing under the roller- 4t guidedby blocks '13, 14: which are pivotally mounted at 15, 16 respectively ,on

"the bed plate 2, The blocks 13, Mare respectively' connected with the ends ofilinks 19, 20 which are connected at "their other ends With an I arm 21 pivotally mounted at [22 'on the bed plateQ. The pins which connect the links 19, 20 with "the blocks 13, '14

respectively, also engage in curvedislots 17, 'l8rin the bed plate 2.5The blocks 13, 14 are thus compelled. to assume a position symmetrical with the center 'line otthe bed plate 2 ,'and the work 1 isthus held centrally whetherfbroad or narrow.

The rotation ofthe roller 4 causes the workl to advance and pass under the'cut- 13611324: whiohare shaped accordingto the contour it'is desired .to impart 'toythe .outer face of theistave. The cutters QA'are mounted on a cutterhead23 which cutterheadis mounted on a shaft 25, "carried in bearings 26 and driven by a pulley 2T through blting. Afterthe workhas been operated on 'by the" cutters '24 it passes onward and is operated onits side'faces .by'cutters 3 0. 31

, on cutter heads*28.. 29. respectively. The "having inclined .Lcutting faces'and mounted "workfl is fmovedfpast these cutters 30,81

I by the roller 12. The cutters 30, 3.1 are mounted so that they can be moved towards or from the center line of the bed plate and also vertically.

The shafts 32, 33 on which are the cutter heads 28, 29 are mounted in bearing-s34, 35 which. are pivotally mounted at 36, 37 and are guided and limited in their movements by the engagement of pins 38, 39 with slots 40, 41 in a frame-work supported below the bed plate 2. The shafts 32, 33 are driven by pulleys 42, 43 and the arrangement is such that the shafts 32, 33 are capable of endwise movement relatively to thebearings 34, 35 and the pulleys 42, 43. -The bearings 34, 35 are also connected by nins 44, 45, with members 46 47 of frames 48 49 supported upon ball races 82 and 84 and held in place by additional races 81' 21116163.

To guide the work 1 and to regulate the position of the cutters 30, 31 during the passage of the work between them, the mechanism next to be described is employed. Mechanism for the first-mentioned purpose comprises blocks56, 51 pivotally mounted at 52, 53 on the bed plate The blocks 50, 51 are connected'withthe one ends of links 54, 55 respectively, which at their other ends are connected with an arm 56 mounted on the upper end of a centrally located shaft 57. On to this shaft 57 is fastened by screw '59, member 58 having a slot 60. (See Figures 4 and 7.) Engaging the slot 60 is an arm 61 having an angular portion pivotally engaging the rear face of a ratchet wheel 62, as shown at 61. This connection is of aloose nature, which will. allow the arm 61 to rotate when actuated by shaft 57 through member 58. Only a very slight rotation will be necessary, as more fully described hereinafter, so that the extreme up and down position of the arm 61, due to the rotation of ratchet wheel 62, will not be sufficient to withdraw the same'from the slot 60. j 1 Ratchet wheel 62, provided with teeth-on its front face, is pivoted at 71t0 the frame structure, and is provided with a slot in its upper portion concentric with its periphery through which extends shaft 69 carrying pawl 63 engaging the teeth of the ratchet and having spiralspring encircling itself, which tends tokey the pawl in engagement with the ratchet teeth. The rear end of shaft 69. extends into the peripheral slot'of the toothed wheel 67, morefully described hereinafter. When the blocks 50, 51am now moved outwards which at most isa' comparatively short distance the arm 56,

through the shaft 57, arm 58, slot 60 and arm 61v turns theratchet'wheel 62." Back ward motion of the ratchet wheel 62 is prevented by a pawl 63. The ratchet wheel 62 is connected with the bearings 34, '35 by links 65, 64. Movement of the'blocks aO, 51

swing inwards when the thus causes corresponding lateral movement of the bearin s 35 and conse uentlv also -moved outof engagement with the ratchet wheel 62 by a stud 66 contained in a groove '70 on a wheel 67 when this wheel has made a complete revolution. ,The wheel 67 has teeth or grooves 68 which engage the work l'as it is fed forward and the wheel 67 is thus caused to rotate in accordance with the feedof the work. To insure that the wheel 67 is always in the correct position at the commencement of operations on a piece of work. the wheel is made out of balanceso that it always tends to assume one position. Spring 100 connectingshafts 32and '33 tend to causethe shafts 32,33 to pawl 63 comes out of engagement with. the ratchet wheel 62. To regulate the vertical position of the cut ters 30, 31 the wheel 67 has mounted off center thereon twomembers 73, 74 in a manner to allow the wheel to rotate while the upper portions of members 73, 74 ride in slots 7 5, 76, in bars of the frame 77, 7 8 (see Figs. 3 and 5). The bars 77 7 8v are pivotallylhelcl shown in Fig. 3. The lateral movement of the arms 73, 74 will be limitedto theextent of the respective slots 75, 76 as the wheel'62 between the downwardly extending portions '79 andf80 ofthe frames 48, 49, as clearly revolves, the vertical movement imparted thereby to members 73, 74 causing the cutters 30,31 to likewise rise and fall vertically. It, will now beseen that'when the wheel 67 is turned the members ,73, 74 will impart vertical movement to the frames 48, 49, and

the cutters 30, 31 are therefore caused to move up and down so that they are at their highest position when acting on the ends'vof the stave and at their lowest positionwhen acting on the center of thestave, whereby, with cutters having inclined cutting faces as shown in the drawing, .the staves are formed wider at the center than at their ends.-

Owing to themanner in which the bean. ings 34, 35 are connected with the frames 48, 49 the vertical'movement of the cutters can take place independently of the side movements thereof.

What we claim is '1. A stave planing machine comprising a work support, tapering cutters mounted upon shafts carried by said support adapted itohave vertical and lateral movementto tudinal plane of the machine which shaft rocks in accordance with the width of the stave and moves the cutter shafts to space them laterally for such width.

2. A stave planing machine conqprising a work support, tapering cutters mounted upon shafts carried by saidsupport adapted to have vertical and lateral movement, and to shape the edges of the stave, a centering device for the work mounted forward of said cutters, controlling the lateral motion of the cutters and means for controlling the Vertical motion'of Said cutters, including a toothed wheel engaging; the work having arms mounted thereon pivotally engaging a framework supporting said cutters, and

coact to allow the cutters to return-to their initial position, ready to act upon a new stave.

In testimony that we claim the foregoing as our invention, we have signed our names in presence of two subscribing witnesses. HENRIK OLAI OLSEN. OSKAR NILSEN.

Witnesses:

B. AAGAARD, CHR. GJERDE. 

